Home / 23,279.50-32,120.11-13,719.77

Finding the Fourth Proportional to 23,279.50, 32,120.11 and 13,719.77

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Solution

The fourth proportional to 23,279.50, 32,120.11 and 13,719.77 is: 18,929.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,279.50 : 32,120.11 = 13,719.77 : x
  2. Step 2: Convert to fraction form
    23,279.50/32,120.11 = 13,719.77/x
  3. Step 3: Cross multiply
    23,279.50x = 32,120.11 × 13,719.77
  4. Step 4: Simplify right side
    23,279.50x = 440,680,452.98
  5. Step 5: Solve for x
    x = 440,680,452.98/23,279.50
  6. Step 6: Final answer
    x = 18,929.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.